Improvement in refrigerator-gars



A. T. NAFIS.

REFRIGERATOR CAR.

No.1.74 837. Patented March14,1876.

N. PETERS. FHOTO-LITHDGRPNER, WASUNGTON D CA I NI'IED STATES PATENT rrca ABRAHAM T. NAFIS, OF JERSEY CITY, NEW JERSEY.

' IMPROVEMENT IN REFRlGRATOR-CARS.

Specication forming part of Letters Patent No. 174,837, dated March 14, 1876; application led October 29, 1875.

.To all whom t may concern:

Be it known that I, ABRAHAM T. NAlus, of Jersey City, in the county of Hudson and State of New Jersey, have invented a new and useful Improvement in Refrigerator-Cars, which improvement is fully set forth in the following specification, reference being had to the accompanying drawing, in Which- Figure l represents a longitudinal Vertical section. Fig. 2 is a horizontal section. Fig.

- 3 is a transverse vertical section.

Similar letters indicate corresponding parts.

This invention relates to that class of refrigerater-cars which are provided with tanks or chambers for receiving a freezing-mixture, in order to lower the temperature in the car for preserving perishable articles during transportation. s

The improvements will be fully hereinafter described, and specifically pointed out in the claims, a preliminary description being, therefore, deemed unnecessary.

In the drawing, the letter A designates the body of my car, which forms the provisionchamber, and which is provided with a root', B, on which is arranged the ice-chamber G. The bottom part oi' this ice-chamber consists of a metallic trough, and said chamber is provided With openings a a in its sides, close over the top edges of the metallic trough, and with ues b b, Which are situated in its ends, and rise up nearly to its top. The warm air from the provision chamber ascends through the lues b b into the ice-chamber, and, after having been cooled by coming in contact with the ice, the air descends again through the openings a a. Beneath the metallic bottom ofthe ice-chamber, and at a small distance from the same, I have placed a non-conducting screen, D.v By means of this screen a channel, c, is formed, and the air which circulates through this channel is cooled by coming in contact with the cold metallic bottom of the ice-chamber. On the ends ofthe screen D are formed gutters d d, and the moisture which condenses cate with waste pipes e e, which are situated in the sides of the body A, and through which the moisture is carried off.

The provision-chamber is provided With a series of racks, F, which serve to strengthen the body of the car, and on which the meat or other articles are spread, so that the air has free access to the same from all sides. By these means I am enabled to carry a heavy load in my car without interfering with the free circulation of" air throughout the provision-chamber, and without danger of overloading the car.

In the interior of the provision-chamber A I place tanks Gr, which are made of metal, and

Which are intended to be charged with a freezing-mixture, such as salt and ice. Access can be hadto these tanks through apertures fin y the roof, which are provided with closely-litting covers. Through these apertures the tanks are charged. Each of these tanks is provided with an overflow-pipe, g, which extends out through the side or bottom of the car, and which prevents the liquid in the tank from rising beyond the desired level.

If the liquid in said tanks should be permitted to rise too high, it would be liable to 'splash out into the provision-chamber by the motion of the car, and it would be impossible to preserve the requisite dryness in said provision-chamber.

By means of the freezing-mixture contained in the tanks GFI am enabled to bring the temperature in the provision-chamber down to the desired point, and to keep it there for any length of time and I can gage the temperature according to the nature of the load.

The tanks for a freezing-mixture may be by Letters Pate-n t, is

l. The combination, with the provisionchamber of a refrigerator-car, of the ice-chamber C in the root' of the car, and having a metallic bottom, the lateral passages a a in its sides, the ues b b in its ends, and the non- In testimony that I claim the foregoingfg,r I conducting screen D at a small distance from have hereunto set my hand and seal this 19th the metallic bottom of the ice-chamber, to creday of October, 1875. ate a channel, all substantially as and for the object specified. ABRAHAM T. NAFIS. [L. S.]

2. In combination with the ice-chamber C,

the non-conducting screen D, constructed with Witnesses:

gutters d d at its ends, and communicating W. HAUFF,

with waste-pipes e e, arranged in the body of E. F. KASTENHUBER.

\ the car, as and for the object specied 

